senescence
Use Senescence in a sentence
ənt adjective
1.
growing old; aging.
2.
Cell Biology. (of a cell) no longer capable of dividing but still alive and metabolically active.
Origin:
1650–60; < Latin senēscent- (stem of senēscēns) present participle of senēscere ‘to grow old’, equivalent to sen- ‘old’ + -ēscent- -escent
1650–60; < Latin senēscent- (stem of senēscēns) present participle of senēscere ‘to grow old’, equivalent to sen- ‘old’ + -ēscent- -escent
Related forms
se·nes·cence, noun
un·se·nes·cent, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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Based on the Random House Dictionary, © Random House, Inc. 2013.
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Link To senescence
Collins
World English Dictionary
senescent (sɪˈnɛsənt) ![[Click for IPA pronunciation guide]](http://static.sfdict.com/dictstatic/g/d/dictionary_questionbutton_default.gif) | |
| —adj | |
| 1. | growing old |
| 2. | characteristic of old age |
| [C17: from Latin senēscere to grow old, from senex old] | |
| se'nescence | |
| —n | |
00:10
Senescence
is always a great word to know.
So is doohickey. Does it mean:
| a gadget; dingus; thingumbob. |
| an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle. |
| senescent (sɪˈnɛsənt) | |
| —adj | |
| 1. | growing old |
| 2. | characteristic of old age |
| [C17: from Latin senēscere to grow old, from senex old] | |
| se'nescence | |
| —n | |
Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Etymonline
Word Origin & History
senescent
1656, from L. scenescens, prp. of senescere "to grow old," from senex "old" (see senile).
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary
senescence se·nes·cence (sĭ-něs'əns)
n.
The process of growing old; aging.
senescent se·nes·cent (sĭ-něs'ənt)
adj.
Growing old; aging.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Encyclopedia Britannica
Encyclopedia
senescence
in human beings, the final stage of the normal life span. Definitions of old age are not consistent from the standpoints of biology, demography (conditions of mortality and morbidity), employment and retirement, and sociology. For statistical and public administrative purposes, however, old age is frequently defined as 60 or 65 years of age or older
Learn more about senescence with a free trial on Britannica.com.
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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Example sentences
No longer growing or dividing, they enter a state called senescence.
Eventually they grow so short that the cells reach a state of senescence in which they simply stop dividing or die.
Senescence helps contain cells so badly damaged that they could turn into cancers.
Twenty-three years earlier he had written a paper proposing an evolutionary framework for senescence, or aging.
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